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- Path: sparky!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge
- From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
- Newsgroups: sci.electronics
- Subject: Re: DC to AC on large scale???
- Date: 25 Jan 1993 13:57:48 GMT
- Organization: NASA Langley Research Center and Reptile Farm
- Lines: 17
- Distribution: world
- Message-ID: <1k0rksINNc34@rave.larc.nasa.gov>
- References: <1993Jan21.095254.62979@cc.usu.edu> <1993Jan22.134237.13381@waikato.ac.nz> <1jp8uvINNb7s@coral.bucknell.edu>
- NNTP-Posting-Host: grissom.larc.nasa.gov
-
- In article <1jp8uvINNb7s@coral.bucknell.edu> rose@bucknell.edu (philip rose `94) writes:
- >In article <1993Jan22.134237.13381@waikato.ac.nz>, phys2108@waikato.ac.nz writes:
- >
- >|> One way I believe they can do it is by using the dc to power a motor, which
- >|> then drives an ac generator.
- >|> Geoff.
- >
- >NOOOOO WAAAAAY!!!
- >
- >This is done with power electronics, no motors or generators are involved.
-
- Actually, motor generator sets were pretty common up until about ten years
- ago when efficient silicon stuff became available. You even see AC-DC
- conversion done with M-G sets from time to time, dating from the days
- before reliable rectifier stacks. Our local theatre has a pair of 100A
- sets that take three phase AC in and produce DC for the projection arcs.
- --scott
-